体积粘性扰动的VGCG模型的观测限制  

Observational constraint on VGCG model containing the perturbation of bulk viscosity

作　　者：李微[1] 李丹[2] LI Wei LI Dan(College of Mathematics and Physics, Bohai University, Jinzhou 121013, China Department of Electrical and Electronic Engineering, Chengdu Industry College, Chengdu 611730)

机构地区：[1]渤海大学数理学院,辽宁锦州121013 [2]成都工业学院电气与电子工程系,四川成都611730

出　　处：《渤海大学学报（自然科学版）》2016年第3期219-222,共4页Journal of Bohai University:Natural Science Edition

基　　金：国家自然科学基金项目(No:61301133)

摘　　要：主要研究了具有体积粘性的推广的Chaplygin气体(VGCG)的宇宙学观测限制.作为对先前工作的扩展,这里将考虑体积粘性的扰动.通过比较两种情况,可以得出如下结论:包含体积粘性扰动之后,得到更为严格的限制结果.The observational constraints on viscous generalized chaplygin gas （ VGCG） model is mainly re-searched .As an extension of our work before , the perturbation of viscosity is considered .Through comparing the results of two different cases , the following conclusion is obtained：the result is more rigorous when the perturba-tion of bulk viscosity is included .

关 键 词：观测限制 粘滞系数 VGCG模型 

分 类 号：O412.1[理学—理论物理]